Golf club head

ABSTRACT

A golf club head is provided. The golf club head comprises a main body and a club portion. The main body has a first junction surface, and the main body is made of a first material. The club portion has a second junction surface, the second junction surface is used to be jointed with the first junction surface, and the club portion is made of a second material. The second material and the first material are substantially different materials. As compared with the first material, the second material has a higher ductility, so after the main body and the club portion are jointed, the club portion has the function of adjusting the angle, the golf club head has a preferred damping effect and a high coefficient of rebound, so as to solve the problem that the integrally-formed main body and the club portion of the conventional golf club head must be manufactured with plenty of expensive material, and to reduce the manufacturing cost.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a golf club head. More particularly,the present invention relates to a golf club head with a club portionand a main body made of different materials.

2. Description of the Related Art

FIG. 1A is a schematic exploded view of a conventional golf club head,and FIG. 1B is a schematic combined view of the conventional golf clubhead. Referring to FIGS. 1A and 1B, the conventional golf club head 1comprises a main body 11 and a hitting plate 12. The main body 11 isintegrally formed and has a notch 111 and a club portion 112. The shapeof the hitting plate 12 matches with the shape of the notch 111, andthen, the hitting plate 12 and the notch 111 are jointed togetherthrough welding, brazing, or other mechanical jointing manners.

Generally, in conventional manufacturing process, the main body 11having the club portion 112 is integrally formed by the same materialsuch as stainless steel, carbon steel, or alloy, etc. The prices ofthese materials are usually expensive. Therefore, the manufacturing costis relatively high for the conventional golf club head 1. In addition,the main body 11 is integrally formed by the same material with a highrigidity. With the high rigidity material, it is not only quitedifficult to adjust the angle between the club portion 112 and thehitting plate 12 but also easily results in the crack and damage of themain body 11.

In addition, the main body 11 made of a material with a higher rigiditymay also cause the golf club head 1 to have a poorer damping effect anda lower coefficient of rebound, and as a result, the hitting effect isreduced and the golfer has a poor hitting sense.

Consequently, there is an existing need for providing a golf club headto solve the above-mentioned problems.

SUMMARY OF THE INVENTION

The present invention is directed to a golf club head, which comprises amain body and a club portion. The main body has a first junctionsurface, and the main body is made of a first material. The club portionhas a second junction surface, the second junction surface is used to bejointed with the first junction surface, and the club portion is made ofa second material. The second material and the first material aresubstantially different materials.

As compared with the first material, the second material has a higherductility, so after the main body and the club portion are jointedtogether, the club portion has the function of adjusting the angle, andthe golf club head has a preferred damping effect and a high coefficientof rebound. Furthermore, the golf club head is formed by the main bodyand the club portion made of different materials, which can solve theproblem that the integrally-formed main body and the club portion of theconventional golf club head must be manufactured with plenty ofexpensive material, and thus reducing the manufacturing cost.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1A is a schematic exploded view of a conventional golf club bead;

FIG. 1B is a schematic combined view of the conventional golf club head;

FIG. 2A is a schematic exploded view of a golf club head according to afirst embodiment of the present invention;

FIG. 2B is a schematic combined view of the golf club head according tothe first embodiment of the present invention;

FIG. 3 is a schematic view of a wood head according to the firstembodiment of the present invention;

FIG. 4A is a schematic exploded view of a golf club head according to asecond embodiment of the present invention;

FIG. 4B is a schematic combined view of the golf club head according tothe second embodiment of the present invention; and

FIG. 5 is a schematic view of a wood head according to the secondembodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

FIG. 2A is a schematic exploded view of a golf club head according to afirst embodiment of the present invention, and FIG. 2B is a schematiccombined view of the golf club head according to the first embodiment ofthe present invention. Referring to FIGS. 2A and 2B, the golf club head2 of the first embodiment comprise a main body 21 and a club portion 22.

The main body 21 has a first junction surface 211, and the main body 21is made of a first material. The club portion 22 has a second junctionsurface 211, the second junction surface 221 is used to be jointed withthe first junction surface 211, and the club portion 22 is made of asecond material. The second material and the first material aresubstantially different materials. Preferably, as compared with thefirst material, the second material has a higher ductility. The firstjunction surface 211 and the second junction surface 221 are jointedtogether by three-dimensional (3D) welding. In other applications, thefirst junction surface 211 and the second junction surface 221 may bejointed by brazing, soldering, bonding, or friction stir welding.

In the first embodiment, the main body 21 is integrally formed and has ahitting surface 212, wherein the first material of the main body 21 is astainless steel or a titanium alloy, and the main body 21 is formed bycasing, forging, or machining. The second material of the club portion22 is a soft iron, a cast iron, or a Fe/Mn/Al alloy, and the clubportion 22 is formed by casing, forging, or machining.

It should be noted that, in the first embodiment, the golf club head 2is an iron head, and in other applications, the golf club head 2 mayalso be a putter head or a wood head (as shown in FIG. 3).

The second material has a higher ductility than the first material, soafter the main body 21 and the club portion 22 are jointed together, theclub portion 22 has the function of adjusting the angle, and the golfclub head 2 has a preferred damping effect and a high coefficient ofrebound. Furthermore, the golf club head 2 is formed by the main body 21and the club portion 22 made of different materials, so as to solve theproblem that the integrally-formed main body and the club portion of theconventional golf club head must be manufactured with plenty ofexpensive material (for example, Fe/Mn/Al alloy), and to reduce themanufacturing cost.

Preferably, the golf club head 2 further comprises at least oneweighting structure (not shown). The weighting structure is disposed inthe main body 21, for example, the weighting structure is disposed atthe bottom or at the back of the main body 21. The weighting structuremay be a W/Ni alloy, a tungsten rubber, or a weighting screw, which isformed by casting, forging, machining, or power metallurgy. Through theweighting structure, the center of gravity of the golf club head 2 maybe further adjusted (for example, the center of gravity is lowered), andthus the hitting effect of the golf club head 2 is further enhanced.

FIG. 4A is a schematic exploded view of a golf club head according to asecond embodiment of the present invention, and FIG. 4B is a schematiccombined view of the golf club head according to the second embodimentof the present invention. Referring to FIGS. 4A and 4B, a golf club head3 of the second embodiment has a main body 31 and a club portion 32. Thedifference between the golf club head 3 of the second embodiment and thegolf club head 2 of the first embodiment of FIG. 2A is that the mainbody 31 comprises a main portion 311 and a hitting plate 312, the mainportion 311 has a notch 313, the shape of the hitting plate 312 matcheswith the shape of the notch 313, and the hitting plate 312 is disposedon the notch 313.

The main portion 311 is made of the stainless steel or titanium alloy,and the hitting plate 312 is made of titanium alloy, stainless steel,Fe/Mn/Al alloy or aluminum alloy. The main portion 311 and the hittingplate 312 are formed by casting, forging, or machining. In the secondembodiment, the main portion 311 and the hitting plate 312 are jointedby 3D welding, or they may be jointed together by welding, brazing,soldering, bonding, or friction stir welding.

It should be noted that, in the second embodiment, the golf club head 3is an iron head, and in other applications, the golf club head 3 mayalso be a putter head or a wood head (as shown in FIG. 5).

The club portion 32 (the second material) of the golf club head 3 in thesecond embodiment has a higher ductility as compared with the mainportion 311 and the hitting plate 312 (the first material), so that theclub portion 32 has the function of adjusting the angle. Similar to thegolf club head 2 of the first embodiment, the golf club head 3 of thesecond embodiment also has the preferred damping effect and highcoefficient of rebound, and the manufacturing cost can be reduced.

While the embodiments of the present invention have been illustrated anddescribed, various modifications and improvements can be made by thoseskilled in the art. The embodiments of the present invention aretherefore described in an illustrative but not restrictive sense. It isintended that the present invention may not be limited to the particularforms as illustrated, and that all modifications that maintain thespirit and scope of the present invention are within the scope asdefined in the appended claims.

1. A golf club head, comprising: a main body, having a first junctionsurface, wherein the main body is made of a first material; and a clubportion, having a second junction surface, wherein the second junctionsurface is used to be jointed with the first junction surface, the clubportion is made of a second material, and the second material and thefirst material are substantially different materials.
 2. The golf clubhead according to claim 1, wherein as compared with the first material,the second material has a higher ductility.
 3. The golf club headaccording to claim 1, wherein the main body is integrally formed and hasa hitting surface.
 4. The golf club head according to claim 3, whereinthe first material is a stainless steel or a titanium alloy.
 5. The golfclub head according to claim 4, wherein the main body is formed bycasting, forging, or machining.
 6. The golf club head according to claim1, wherein the second material is a soft iron, a cast iron or a Fe/Mn/Alalloy.
 7. The golf club head according to claim 6, wherein the clubportion is formed by casting, forging, or machining.
 8. The golf clubhead according to claim 1, wherein the main body comprises a mainportion and a hitting plate, the main portion has a notch, the shape ofthe hitting plate matches with the shape of the notch, and the hittingplate is disposed on the notch.
 9. The golf club head according to claim8, wherein the main portion is made of a stainless steel or a titaniumalloy.
 10. The golf club head according to claim 8, wherein the hittingplate is made of a titanium alloy, a stainless steel, a Fe/Mn/Al alloyor an aluminum alloy.
 11. The golf club head according to claim 8,wherein the main portion, the hitting plate, and the club portion areformed by casting, forging, or machining.
 12. The golf club headaccording to claim 8, wherein the main portion and the hitting plate arejointed by welding, brazing, soldering, bonding, friction stir welding,or three-dimensional (3D) welding.
 13. The golf club head according toclaim 1, further comprising at least one weighting structure disposed inthe main body.
 14. The golf club head according to claim 13, wherein theweighting structure is disposed at the bottom or at the back of the mainbody.
 15. The golf club head according to claim 14, wherein theweighting structure is a W/Ni alloy, a tungsten rubber, or a weightingscrew.
 16. The golf club head according to claim 14, wherein theweighting structure is formed by casting, forging, machining, or powdermetallurgy.
 17. The golf club head according to claim 1, wherein thefirst junction surface and the second junction surface are jointed bywelding, brazing, soldering, bonding, friction stir welding, or 3Dwelding.